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LED inrush current and generator set

Julien Leblanc
Hello,


I'm currently working on a sport field application where i need to power some LED reflectors (30 kW total).

I will also use a generator set, in case the network fails.


The inrush current of the reflectors is 3 times higher than their rated current, but the duration is only 0.2ms.


Could anybody tell me if i should take into account the inrush current when I choose the generator set power (that is, to oversize the generator)?

Or i should ignore the inrush current and set the power of the generator a bit higher than the total power of the reflectors?

I'm not talking about the circuit breakers of generator's outputs. Let's say one can choose them so that they don't trip.

If those breakers don't trip, is it possible that anything else happen to the generator set, because of the inrush current?


I've been searching through the specifications of many generator sets, but i cannot find any data on this specific problem (short overload).






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  • 0
    Sheilen Singh (Kevin) Hookoom:

    Hi

    If you need to supply only LED lights for this application, well there are already dedicated Lighting Towers on the market already with different ratings up to 2000W.These are already well designed and rated as per specific application.

    b62c9c7229266ca5434b8ae214b80049-original-image.png

    This will be suitable only if you do consider to provide current for LED lights only .Then for connection via PLC , then you must check if there is the option of bus connection on the main board for this type which I doubt.

    If you need light and plus other current on other phases,then instead of a single phase gensets maybe you need to consider a 3 phase gensets and maybe >=50KVA but please reconsider the load calculation. Typically on a 50 KVA 3 phase,there is already the bus connection for plc connection and connectivity,However recommended to check on the specs.

    Note that the higher the KVA the higher the cost.The gensets have 0.8 PF and rated on KVA only. For the ATS,these are available on gensets or separeatley modules depending on options and models or availability.

    Hope these may have been of help.

    Thank you.

     


    Thank you for the reply.

    I didn't think of communicating with the PLC through a bus connection... It seems interesting.

    I only thought of coordinating the start of the group of loads with the PLC.

     


Reply
  • 0
    Sheilen Singh (Kevin) Hookoom:

    Hi

    If you need to supply only LED lights for this application, well there are already dedicated Lighting Towers on the market already with different ratings up to 2000W.These are already well designed and rated as per specific application.

    b62c9c7229266ca5434b8ae214b80049-original-image.png

    This will be suitable only if you do consider to provide current for LED lights only .Then for connection via PLC , then you must check if there is the option of bus connection on the main board for this type which I doubt.

    If you need light and plus other current on other phases,then instead of a single phase gensets maybe you need to consider a 3 phase gensets and maybe >=50KVA but please reconsider the load calculation. Typically on a 50 KVA 3 phase,there is already the bus connection for plc connection and connectivity,However recommended to check on the specs.

    Note that the higher the KVA the higher the cost.The gensets have 0.8 PF and rated on KVA only. For the ATS,these are available on gensets or separeatley modules depending on options and models or availability.

    Hope these may have been of help.

    Thank you.

     


    Thank you for the reply.

    I didn't think of communicating with the PLC through a bus connection... It seems interesting.

    I only thought of coordinating the start of the group of loads with the PLC.

     


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